
body{
    margin: auto;
    width: 2000px;
    margin-bottom: 10px;
    background-color: #2662581f;
}
/* <!-- 林梦雅20软单20200508110 --> */
.part1{
    border-bottom: 10px #266258 solid;

}
.part1-tt{
    background-color: white;
    font-size:30px;
    
}
.navbar-nav{
    margin-left:30px;

}
.nav-item{
    margin-left: 60px;
    
    transition: color 0.3s; /* 添加过渡效果 */
    cursor: pointer; /* 设置鼠标样式为手型 */
}
.nav-link{
    color: rgb(76, 76, 76);
}
.nav-item :hover,.nav-link :active{
    color:#266258;
    font-weight: bolder;

}
.w-80{
    width: 1500px;
    height: 100%;
}
.part3{
    margin-top:120px;
}
.part3-img{
    width: 1000px;
    
}
.span {
    margin: auto;
    display: flex;
    justify-content: center; /* 水平居中 */
    align-items: center; /* 垂直居中 */
}
.part3-tt{
    padding-left: 100px;
    color: #266258;
    font-size: 50px;
}
hr{
    border: none;
    border-top: 10px solid green;
}
.product{
    margin-top: 30px;
    font-size: 30px;

}
.proimg {
    height: 700px;
    background: linear-gradient(to right,#266258, rgb(209, 209, 20));
    margin-top: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
.proimg img:not(:last-child) {
    margin-right: 30px;
  }

.part4z{
    background-color: #266258;
    height: 230px;
    margin-top: 30px;
}
.part4z-tt{
    display: flex;
    justify-content: center;
    align-items: center;
    padding-left: 100px;
    padding-top: 20px;
    color: white;
    font-size: 50px;
    font-family: "宋体";
    font-weight: bolder;
}
.part5{
    font-size: 22px;
    margin-top: 20px;
    display: flex;
}
.part5-tt{
    font-weight: bolder;
}
.left{
    width: 1200px;
}
.right{
    width: 600px;
    margin-left: auto; /* 将右侧元素向右对齐 */
}
.h1tt{
    border-bottom: #266258 10px solid;
    font-size: 30px;
    color: #266258;
    font-weight: bolder;

}
tr{
    height: 200px;
}
